Examples are to restrict Internet access by blocking the traffic destined for a specific port or to have an result on the performance of certain purposes by assigning priority. However, despite the pending change to digital, analog tv stays being transmitted in most countries. An exception is the United States that ended analog tv transmission (by all however the very low-power TV stations) on 12 June 2009 after twice delaying the switchover deadline. Kenya also ended analog television transmission in December 2014 after a quantity of delays.
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